I've got a dhcp server which serves out kickstart file location:

<partial dhcpd.conf>
 elsif substring (option vendor-class-identifier , 0, 10 ) = "PXEClient:" {
      next-server 10.100.0.254 ;
      filename "eepro100.pxe" ;
} elsif substring (option vendor-class-identifier , 0, 4 ) = "MSFT" {
} else {
    filename "/exports/kickstart/workstations-8.1.ks";
    next-server 10.100.0.254;
}

Since anaconda doesn't send an interesting VCI, it just gets the:

    filename "/exports/kickstart/workstations-8.1.ks";
    next-server 10.100.0.254;

If I boot beta4 off of cd and give it

linux ks

at the stage1 loader prompt, it fails to retrieve a kickstart file and goes
straight into the interactive CD-based install

I have to boot it with

linux ks=nfs:blah,blah,blah

to get it to find the kickstart file over the net and use it